Insert Tool

Abstract

An insert tool, in particular a drilling tool, having a base module is disclosed. The base module has a first portion, which in particular includes a conveying helix, and a second portion, which includes cutting bodies with preferably at least two rake faces. The second portion is connected to a first end of the first portion in an integrally bonded manner. The base module is connected, at a second end, to an, in particular hardened, insertion end in an integrally bonded manner by way of in particular a friction welding method.

Claims

1. An insert tool, comprising: a base module having (i) a first portion which comprises a conveying helix, and (ii) a second portion which comprises a cutting body, the second portion being connected to a first end of the first portion in an integrally bonded manner; and an insertion end, wherein the base module is connected at a second end of the first portion to the insertion end in an integrally bonded manner.

2. The insert tool according to claim 1, wherein the insertion end takes the form of a cylinder shaft of an outer-edge shaft and/or of an SDS insertion end.

3. The insert tool according to claim 1, wherein the cutting body comprises, at least partially, a hard metal.

4. The insert tool according to claim 1, wherein the cutting body is machined by way of a grinding method in such a way that the cutting body has at least two ground faces.

5. The insert tool according to claim 4, wherein at least one of the at least two ground faces takes the form of a flank.

6. The insert tool according to claim 4, wherein the cutting body has four ground faces or seven ground faces.

7. A system, comprising: a first insertion tool according to claim 1; and a second insertion tool according to claim 1, wherein the base modules of the first insertion tool and the second insertion tool are designed to be substantially identical, and wherein the base modules of the first insertion tool and the second insertion tool are connected to different insertion ends in an integrally bonded manner and/or the cutting bodies are machined by manners of different grinding methods.

8. The system according to claim 7, wherein the first insertion tool and the second insertion tool have different surface identifiers.

9. A method for producing an insert tool, comprising: in a first method stage, providing a base module, which has a basic body, which in particular comprises a conveying helix, and a cutting body; and in a second method stage, by means of in each case at least one method step, adapting the base module to a handheld power tool, to a workpiece to be machined, and with a surface identifier.

10. The method for adapting a second method stage according to claim 9, with a dataset, which information for adapting a base module to a handheld power tool, to a workpiece to be machined, and of the surface identifier, is provided by a computing unit or is provided to a computing unit.

11. The insert tool of claim 1, wherein the insert tool is a drilling tool.

12. The insert tool of claim 1, wherein the cutting body has at least two rake faces.

13. The insert tool of claim 1, wherein the insertion end is hardened.

14. The insert tool of claim 1, wherein the base module is connected at the second end of the first portion to the insertion end by way of a friction welding method.

15. The insert tool of claim 3, wherein the cutting body completely comprises a hard metal.

16. The insert tool according to claim 4, wherein the at least two ground faces take the form of rake faces.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Further advantages will result from the following description of the drawings. The drawings, the description and the claims contain numerous features in combination. A person skilled in the art will expediently also consider the features individually and combine them to form useful further combinations. Reference signs of features of different embodiments of the disclosure which substantially correspond are provided with the same number and with a letter designating the embodiment.

[0022] In the drawings:

[0023] FIG. 1 shows a side view of a base module for an insert tool according to the disclosure;

[0024] FIGS. 2a-d show side views of various embodiments of insertion ends for the insert tool according to the disclosure;

[0025] FIGS. 3a-c show perspective views of various embodiments of ground cutting bodies of the cutting body according to the disclosure;

[0026] FIG. 4 shows a flow diagram of a manufacturing method for the insert tool;

[0027] FIG. 5 shows a side view of an insert tool according to the disclosure.

DETAILED DESCRIPTION

[0028] In FIG. 1 there is shown a side view of a base module 10. The base module 10 is provided for an insert tool 100 which takes the form, by way of example, of a rock drill bit 102 (see FIG. 5). The base module 10 has a first portion 12 and a second portion 14.

[0029] The first portion 12 comprises a basic body 13 and is designed, by way of example, to be integral. The first portion 12 consists, by way of example, of steel. The first portion 12 has a conveying helix 16 which, by way of example, is of 2-flight design. The conveying helix 16 thus has two grooves 18 which extend spirally around the longitudinal axis 20 of the base module 10. The conveying helix 16 extends by way of example along approx. 50% of the length of the base module 10 and, starting from the center, up to the beginning of the second portion 14. The region of the basic body 13 that faces away from the second portion 14 has a cylindrical lateral surface without grooves.

[0030] The second portion 14 comprises a cutting body 22 which consists, by way of example, of a hard metal. The cutting body thus has a greater hardness than the basic body 13. The cutting body 22 consists, by way of example, of tungsten carbide. Alternatively, other hard metals would also be conceivable. The cutting body 22 is connected, at a first end 24 of the first portion 12, to the latter in an integrally bonded manner. In the region of the first end 24, the basic body 13 has a cutout in which the cutting body 22 formed as small hard metal plates 26 is inserted and soldered or welded. Alternatively, it would also be conceivable for the cutting body 22 to take the form of a solid hard metal head. In this case, the basic body 13 does not have a cutout, but only a planar joining face which is provided for integrally bonded connection. The second end 25 of the first portion 12 or of the basic body 13 is arranged on a side facing away from the cutting body 22. The second end 25 is provided for connecting the base module 10 to an insertion end 30 in an integrally bonded manner (see FIGS. 2a-d).

[0031] In order to achieve a high degree of durability when removing rock, it is very advantageous to form the cutting body 22 from hard metal. If the base module 10 is provided for an insert tool 100 which takes the form of a metal drill bit, it would also be conceivable for the basic body and the cutting body to be formed integrally and thus to be formed from the same material.

[0032] In FIG. 2a to FIG. 2d there are shown, by way of example, various insertion ends 30a-30d which, in order to produce the insert tool 100, are connected to the base module 10 by means of a friction welding method. For connection to the base module 10, the insertion ends 30a-30d each have a planar joining face 31a-31d which extends substantially perpendicularly to the longitudinal axis 20 of the base module 10 or of the insert tool 100.

[0033] In FIG. 2a there is shown a side view of an insertion end 30a which takes the form of a cylindrical shaft 32a. Handheld power tools taking the form of drilling machines frequently have tool receptacles providing a fit therefor.

[0034] In FIG. 2b there is shown a side view of an insertion end 30b which takes the form of a ¾″-hexagon shaft 34b. Handheld power tools taking the form of battery-operated screwdrivers frequently have the tool receptacle providing a fit therefor.

[0035] In FIG. 2c there is shown a side view of an insertion end 30c which takes the form of an SDS-plus shaft 36c. The SDS-plus shaft 36c has two opposite open grooves 38c which are arranged on a side of the insertion end 30c that faces away from the joining face 31c. Moreover, the SDS-plus shaft 36c has two closed grooves 40c which are arranged in the circumferential direction between the open grooves 38c. Handheld power tools taking the form of hammer drills frequently have the tool receptacle providing a fit therefor.

[0036] In FIG. 2d there is shown a side view of an insertion end 30d which takes the form of a hexagon shaft 42d. Handheld power tools taking the form of heavy demolition hammers frequently have the tool receptacle providing a fit therefor.

[0037] By way of cost-effective alternative, it is also conceivable to dispense with a grinding operation and to leave the cutting body 22 as shown in FIG. 1.

[0038] Alternatively, further insertion ends which are provided for tool receptacles for handheld power tools are also conceivable.

[0039] In FIG. 3a to FIG. 3c there are in each case shown cutting bodies 22 of the base module 10 which have been ground by means of a grinding method.

[0040] The cutting body 22a in FIG. 3a has, by way of example, two ground faces 23a, namely a first ground face 44a and a second ground face 46a. Here, the two ground faces 44a, 46a extend starting from a chisel edge 48a of the cutting body 22a. The two ground faces 23a can, by way of example, be ground by hand or automatically by means of a machine.

[0041] The cutting body 22b has, by way of example, four ground faces 23b. In the perspective view according to FIG. 3b, of the four ground faces 23b only the first, the second and a third ground face 44b, 46b, 50b are shown.

[0042] The cutting body 22c has, by way of example, seven ground faces 23c. In the perspective view according to FIG. 3c, of the seven ground faces 23c only the first, the second, the third, the fourth and the fifth ground face 46c, 48c, 50c, 52c and 54c are shown.

[0043] In FIG. 4 there is shown a flow diagram 200 for manufacturing the insert tool 100 according to the disclosure.

[0044] In a first method stage 202, a base module 10, which has a basic body 13, which comprises a conveying helix 16, and a cutting body 22, is provided. In a second method stage, by means of in each case a method step, the base module 10 is adapted 204 to a handheld power tool, the base module 10 is adapted 206 to a workpiece to be machined, and the base module 10 is adapted 208 with a surface identifier. The illustrated sequence of the method steps 204, 206, 208 of the second method stage is particularly advantageous. However, it would also be conceivable for the method steps to proceed in a different sequence or for method steps to be omitted or added.

[0045] In FIG. 5, by way of example, a base module 10 has been adapted with the method steps according to FIG. 4. The base module 10 is connected to the insertion end 30c in an integrally bonded manner by means of a friction welding method and thus provided for handheld power tools taking the form of hammer drills. The cutting body 22a consisting of hard metal is ground by means of a grinding method and has two ground faces 23a. Already with the four insertion ends shown in FIGS. 3a-d and with the three grinding variations shown in FIGS. 3a-c plus the unground cutting body, there result 16 different insert tools that are able to be produced on the basis of the base module. In particular, not only rock drill bits and metal drill bits but also tile drill bits are able to be produced on the basis of the base module. The insert tool 100 has a surface identifier 56 which takes the form, by way of example, of a 3D code. The surface identifier 56 has been applied by means of an RIP ink printing method as the last step of the manufacturing method.